Masthead/White All-Round Navigation Light – 12VFeatures:White PolymerClear Frosted Lenses2-Mile (USCG 2nm) Certified (All-Round Light)3-Mile (USCG 3nm) Certified (Masthead Light)Technical Specifications:Voltage: 12 Volt (Bulb Included)Wattage: Upper: 25 watts / Lower: 10 wattsAmperage: (25 watts) 12V: 2.08 amps / 24V: 1.04 amps, (10 watts) 12V: .83 amps / 24V: .42 ampsScrew Size: #10Height Overall: 8-5/8″Height Lens: 2-3/4″O.D. Base Inches: 3-5/16″Visibility Arc: 360 Quick Guide (pdf)